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De re metallica . en Woodcut from De re metallica Vom Bergwerk XII Bcher Gold panning with sluice and pan de Holzschnitt Seite aus De re metallica Vom Bergwerk XII Bcher Goldwaschen mit Gerinne und Sichertrog digitalis unikoeln de pdf Georgius Agricola PDold Original upload log de Ireas CommonsHelper page de Deremetallicap